Miscibility Gaps in Fused Salts

The two families of systems formed by silver halides with alkali Chromates and tungstates have been systematically investigated in order to bring into evidence possible demixing phenomena. It has been found that silver chloride demixes with lithium Chromate and tungstate and with sodium tungstate; silver bromide demixes with lithium and sodium Chromates and tungstates; silver iodide demixes with lithium, sodium and potassium Chromates and tungstates. Moreover the whole composition square of the ternary reciprocal system Ag, Na/Cl, W 0 4 has been investigated. The tendency to demix in these systems has been discussed on the basis of the characteristics of the ions.